The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 16, 2017
Filed:
Nov. 03, 2010
Daniel B. Thompson, Walnut Creek, CA (US);
Jacob J. Richardson, Santa Barbara, CA (US);
Steven P. Denbaars, Goleta, CA (US);
Jin Hyeok Kim, Kwangju, KR;
Maryann E. Lange, Santa Barbara, CA (US);
Daniel B. Thompson, Walnut Creek, CA (US);
Jacob J. Richardson, Santa Barbara, CA (US);
Steven P. DenBaars, Goleta, CA (US);
Frederick F. Lange, Santa Barbara, CA (US);
Jin Hyeok Kim, Kwangju, KR;
The Regents of the University of California, Oakland, CA (US);
Abstract
A method for fabricating a Light Emitting Diode (LED) with increased light extraction efficiency, comprising providing a III-Nitride based LED structure comprising a light emitting active layer between a p-type layer and an n-type layer; growing a Zinc Oxide (ZnO) layer epitaxially on the p-type layer by submerging a surface of the p-type layer in a low temperature aqueous solution, wherein the ZnO layer is a transparent current spreading layer; and depositing a p-type contact on the ZnO layer. The increase in efficiency may be more than 93% with very little or no increase in cost.